Brush-making machine.



H. M. SCHWARTZ.

BRUSH MAKING MACHINE.

APPLIOATION FILED MAB. 5, 1908.

Patented July 20, 1909.

` ma .|uIl||mlluIlIllllmlllrllllllmlllllgll'llllllmlllll'1mh /UNITED sTArns PATENT oinuon.y

HERMAN M. SCHWARTZ, OF NORTHAMPTON, MASSACHUSETTS, ASSIGNOR TO TIIE FLORENCE MANUFACTURING COMPANY, OF NORTHAMPTON, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

- BRUSILMAKING MACHINE Patented July 20, 1909.

Application led latch 5, 1908. SerialNo. 419,866.

To all whom it may concern:

Be it known that I, HERMAN M. SCHWARTZ, a citizen-'ofthe United States, residing at Northampton, county ,of Hampshire, State of Massac and useful Improvement in. Brush-Making Machines, of which the following is a speciaccomplished by means of a rake and a chai'n' provided with needles or spikes which engage the stream of bristles in the bristle feeding channel. In machines of this type, it is necessary that the knots or tufts each contain the same amount of bristles and this uniformity in the size of the tufts is largely dependent u on the evenness'and smoothness with whic the stream of bristles'is fed for- Ward 4from the mass of bristles to the device feeding chain has not itself been driven.

My invention has for its object to provide automatic means of actuating the feed chain in addition to the means employed to actuate the rake. Furthermore the device embodying my invention is so constructed that the feed chain exerts a constant and equal pressure on the bristles inthe bristle feeding passage, thereby insuring that the bristle feeding channel at the point Where the knot picker operatesN is always filled with bristles under constant pressure so that an even knot is always formed. s

The invention Will be fully understood from the following description taken' in connection `with the accompanying drawings, and the novel features will be pointed out and clearly defined in the claims at the close of the specification.

In the drawings,-Figure 1 is a plan view usetts, have invented a .certain new v means of Which'knots:

l of a device embodying my invention. Figi'5 2 e.-

is an end elevation thereof, certain parts ing broken away for clearness of illustration. Referring to the draWin s,-The reservoir orA receptacle for the brist es is indicated at A and the bristles therein at B. The slicebar, by means of which a portion of the bris'- tles in the receptacle A is separated'from the' mass of bristles B, is designated C, and furnishes an abutment which forms one side 'of the initial portion of the bristle passage D down which the stream of bristles is carried toward the knot picker by means ofthe rake R, in conjunction with an endless spike chain E. The chain E passes around a pair of sprocket Wheels F and G mounted on axles H and I respectively. This chain is provided With splkes or needles J J there being preferably two needles oneach link as will be plainly seen in Fig. 2. The sprocket wheel G'is actuated in one direction to drive the said chain E by means ofthe following mech-' On the axle I is vlocated a ratchet wheel K provided with a large number of fine notches 11 in its periphery. This ratchet wheel K 1s in turn actuated by a pawl 12 which 1s located on a slide 13 running in a groove 14 in the frame L of the machine. This slide 1s actuated by a sWin ing link 15 operated by some moving part og the machine. I have not thou ht 1t necessary to show the means by Whic the said arm 15 is actuated as such arms occur frequently in brush making machines of this kind. Fast to the slide 13 is afblock 16 upon which the pawl 12 is supportelv fin a substantially horizontal position. The pawl 12 is provided with a V-shaped end as seen in Fig. 1 and is pivoted at 17 to the said bleek or plate 16, but the said pivot 17 passes through a slot in the said pawl so that the said pawl 12 is movable for a short dlstance lon itudinally of the said piece 16. A sprlng 18 olds the point of the pawl against the notched edge of the awl wheel K and a pln 19 limits the motionof the point of the pawl toward the pawl Wheel K. I also provide a U-shaped springv 2O Which bears agalnst the back end of the pawl 12 and tends to shde the pawl toward fthe bottom of the figure shown in Fig. 1. This spring 20 is of sulicient strength slo that the `pawl 12 will actuate the feed wheel K under ordinary cenditions, but will give when the bristle feedlng passage is full of bristles and the bristles therein are packed with a predetermimul density. After the knot picker (not shoe n) has taken a knot of bristles from the front end of the lwristle feeding passage, the next half stroke of the machine actuates the spike chain E and feeds the bristles forward. ll` for any reason the bristles in the passage are already packed with' the required density, the spring 20 yields and the ratchet-wheel is not turned hy that strokeof the machine.

'I` he lever or sWin ine' link l5 is given one oscillation foreach tuft that is set. Each oscillation of the link 15 advances the pawl wheel K a predetermined number of notches unless the spring .20 yields but by this means Athe lzristle feeding passage is kept constantly lled with bristles which are packed to the desired density and an even tuft or knot is produced.

I claim as my invention,-

1. In a brush making machine and. in comhination, a lyristle reservoir, ahntments forning with an endless chain a hristle feeding channel, a rake, and an endless chain to move the stream of bristles in the channel, and automatic means for driving said endless chain.

2. In a brush making machine and in comhination, a bristle reservoir, ahutments forming With an endless chain, a lnristle feeding channel, a rake and an endless chain to move the stream of bristles in the channel, and inde endent automatic means for actuating t ie said rake and endless chain.

3. In a brush making machine and in combination, a bristle reservoir, ahutments forming with an endless chain a bristle feeding channel, lan endless" chain to move the stream of bristles in the channel, pawl and ratchet mechanism for actuating the said chain and a spring engaging the said `pawl and yielding when a predetermined density of lfristles in the channel has been reached so that the said pawl does not thereafter ac,- tnate the said ratchet.

il. ln a brush making machine and in coml: ination with a moving part thereof, a bristle reservi'iir, alfutments forming with an endless cliain a bristle feeding channel, an endless chain provided with spikes to engage the bristles in the channel, a sprocket wheel for said endless chain, a ratchet Wheel on said sprocket' Wheel, a pawl on the said moving part ol the machine and engaging the said ratchet wheel and a yielding mernherbetween said moving part and said pawl whereby the said endless chain is moved only when the hristl s in the said channel are packed with less than a pre-determined density.

5. In a crush making machine and in comhination with. a, moving part thereof, a bristle reservoir, alietments forming with an endless chain a lfristle feeding channel, an

endless chain provided With spikes to engage` the liristles in the channel, a sprocket Wheel for said endless chain, a ratchet Wheel on said sprocket Wheel, a paWl on said moving` part of the machine and a spring `cetween said moving part and said pawl whereby said pawl Will compress the said springr and not actuate said endless chain when the lzristles in the said channel are packed to more than a predetermined density.

In testimony whereof I allix my signature, in presence of two witnesses.

HERMAN M. SCI'IXARTZ.

Witnesses JonN II. PARKER, Amon H. Monnrsrm. 

